From: Phil Sainty <psainty@orcon.net.nz>
To: emacs-devel@gnu.org
Subject: Re: Execution speed
Date: Mon, 20 Mar 2017 11:49:33 +1300 [thread overview]
Message-ID: <b127d5b9-1a63-c7e6-0822-c106020cf2ac@orcon.net.nz> (raw)
In-Reply-To: <87lgs13wz2.fsf@users.sourceforge.net>
Using npostavs's code:
| DYNAMIC | interpreted | compiled
--------------------------------------------------------------------
25.2 | recursive | 1.55s | 0.94s
| iterative | 1.70s | 1.06s
--------------------------------------------------------------------
25.1 | recursive | 1.53s | 0.95s
| iterative | 1.87s | 1.06s
--------------------------------------------------------------------
24.5 | recursive | 1.65s | 1.24s
| iterative | 1.43s | 0.95s
--------------------------------------------------------------------
24.4 | recursive | 1.78s | 1.25s
| iterative | 1.59s | 1.02s
--------------------------------------------------------------------
| LEXICAL | interpreted | compiled
--------------------------------------------------------------------
25.2 | recursive | 4.27s (2.22s in 506 GCs) | 0.64s (0.03s in 6 GCs)
| iterative | 1.56s (0.10s in 23 GCs) | 0.49s (0.03s in 6 GCs)
--------------------------------------------------------------------
25.1 | recursive | 4.26s (2.21s in 506 GCs) | 0.64s (0.03s in 6 GCs)
| iterative | 1.58s (0.10s in 23 GCs) | 0.50s (0.03s in 6 GCs)
--------------------------------------------------------------------
24.5 | recursive | 4.11s (2.14s in 507 GCs) | 0.92s (0.03s in 6 GCs)
| iterative | 1.57s (0.09s in 22 GCs) | 0.84s (0.03s in 7 GCs)
--------------------------------------------------------------------
24.4 | recursive | 4.20s (2.08s in 506 GCs) | 0.91s (0.03s in 6 GCs)
| iterative | 1.65s (0.10s in 23 GCs) | 0.82s (0.03s in 6 GCs)
--------------------------------------------------------------------
Running as:
emacs -Q --batch -l /tmp/gcd-benchmark-dynamic.el --eval '(progn
(gcd-dynamic-benchmarks) (princ (buffer-string)))'
emacs -Q --batch -l /tmp/gcd-benchmark-lexical.el --eval '(progn
(gcd-lexical-benchmarks) (princ (buffer-string)))'
On 20/03/17 08:09, npostavs@users.sourceforge.net wrote:
> On Sun, Mar 19, 2017 at 11:12 AM, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
>> the other one is my locally built&hacked version with debugging
>> assertions and stuff.
>
> Is that the one that sets lexical-binding always? According to my
> measurements, the iterative case is slower on Emacs 25 when using
> dynamic binding. With lexical binding, the recursive case is always
> slower.
>
> (Note the measurements below are using unoptimized -O0 builds, with
> extra checking enabled)
>
> GNU Emacs 24.5.5 (x86_64-unknown-linux-gnu, X toolkit) of 2017-02-12 on zony
>
> | DYNAMIC | interpreted | compiled |
> |-----------+-------------+----------|
> | recursive | 7.64s | 5.61s |
> | iterative | 7.91s | 4.24s |
>
> | LEXICAL | interpreted | compiled |
> |-----------+----------------------------+------------------------|
> | recursive | 21.82s (12.20s in 470 GCs) | 4.73s (0.15s in 6 GCs) |
> | iterative | 8.87s (0.54s in 21 GCs) | 3.14s (0.15s in 6 GCs) |
>
> GNU Emacs 25.2.6 (x86_64-unknown-linux-gnu, X toolkit) of 2017-03-01
>
> | DYNAMIC | interpreted | compiled |
> |-----------+-------------+----------|
> | recursive | 10.58s | 6.39s |
> | iterative | 14.05s | 6.72s |
>
> | LEXICAL | interpreted | compiled |
> |-----------+----------------------------+------------------------|
> | recursive | 35.44s (20.56s in 448 GCs) | 4.35s (0.28s in 6 GCs) |
> | iterative | 13.20s ( 0.92s in 20 GCs) | 2.96s (0.23s in 5 GCs) |
>
>
next prev parent reply other threads:[~2017-03-19 22:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-19 15:12 Execution speed Stefan Monnier
2017-03-19 15:26 ` Mark Oteiza
2017-03-19 15:32 ` Eli Zaretskii
2017-03-19 16:01 ` Tino Calancha
2017-03-19 16:14 ` Andreas Politz
2017-03-19 16:33 ` Teemu Likonen
2017-03-19 19:09 ` npostavs
2017-03-19 22:49 ` Phil Sainty [this message]
2017-03-20 10:36 ` Performance of lexical closures in interpreted code? (was Re: Execution speed) Phil Sainty
2017-03-20 12:50 ` Stefan Monnier
2017-03-20 13:12 ` Stefan Monnier
2017-03-19 22:30 ` Execution speed Phil Sainty
2017-03-20 9:46 ` Ivan Kanis
2017-03-20 10:46 ` Philippe Vaucher
2017-03-20 14:26 ` Filipp Gunbin
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